Reenforced shipping case



Jan. l, 1929.

H. R. BLISS REENFORCED SHIPPING` CASE 2 Sheets-Sheet 2 Filed Jan. 10, 1924 at the same time given relatively the vertical corners.

Patented Jan. 1, 1929.

UNITED STATES PATENT OFFICE.

HERBERT R. BLISS, OF N IAGARA'FALLS, NEW YORK, ASSIGNOR TO BLISS CONTAINERS,

INC., OF NIAGARA fIE'ALILLS,y NEW YORK, A CORPORATION oF NEW YORK.

REENFORGED SHIPPING CASE.

Application filed January 10, 1924. Serial No. 685,354.-

This invention relates tov a shipping case constructed of fibre board 0r equivalent material and has forits object a shipping case which achieves maximum blank economy and has relatively great strength by reason of double reenforced corners.

A The commonly used shipping case of the present day is the so-called slotted-end container, made of a single blank. This case has o good satisfaction but is enormously wasteful in material. Furthermore, the same is not suitable for shipping relatively heavy hardware, nor damp goods for it does not have the requisite strength at This is especially so at the vertical corner where the manufacturers seam appears. It is the object of the present invention to provide a shipping case which requires a less .area of blank and at the. same time provides double reenforced corners so that the same can stand stacking, tearing strains and dampness.

' It is not broadly new to-reenforce a fibre shipping case at the corners, but so far as I am aware no one has heretofore so designed a box that this reenforcement can be had on all"three corners at eachend of the box by flaps integral 'with the main. blanks and' which l re uire no wastage in ,cutting the blanks. hese l..eatui'es Vare 'all embodied in my improved shipping case.

In thef drawings: aA perspective of the completed case. 1`

Fig. i sea' -F'g. 3 is a section on the line 3-3 of Fig. 2. Fig. 4 is a perspective of a modified form of the invention. Fig. 5 is a section on the line 5 5 of Fig. 4. Figs. 6, 7 and 8 show the blank construction.

, rI he end blanks are designated a and b and s a perspective ofthe case before are provided with corner flaps` a1, a2 andr The ,container is set ullwith-rthe body blank a s on the inside as s own in Fig.y 4 and en blank ,iaps on the outside or lwith the body blank flaps' on the outside and the end V1,2anol is started blank flaps on the inside, as shown in Figs. 3. This is a matter of indifference.

These flaps at the three corners at the ends of the case are secured to the adjacent blank, preferably by wire stitching. This forms a double reenforcement at the corners, making the box stronger than any extensively used commercial case with which'I am familiar. 'In some cases, I shall only secure the outside iaps to the adjacent blanks, leaving the inside iiaps to simply abut.

In my container, no separate reenforcing strips are required, the reenforcing strips or flaps all being on the blanks. It will be noted that the location ofthe flaps'on the blanks makes no wastage in material save at the ends of the cover wings f and g, and at the corners of the end blanks. This Wastage is very small indeed and is hardly worth considering. The resulting container is a flush-end container having a full capacityas compared to its dimensions, as opposed to the so-called recessed-end box. Furthermore, the amount of blank material required to construct this box is relatively less than the slotted-end container and yet has very muchv greater strength.

' Furthermore,-I have found that a container constructed in the .way I have described lhas several other advantages, namely,it has double stacking strength of ordinary shipping cases made of fibre board for the vertical reenforced corners form doublejstrength corner posts to support the containers when filledsealedand stacked. The corners of any fibre or corrugated board shipping case are the weakest point. In a great many factories these shipping cases p are handled a sealed and the are often torn at the corners due to rou h andhn l Tearing ordinarily yreason of the corners giving slightly dueto their Hexibility. By doubling the strength of. the corners them very much more rigid andthe tears do not start as with the ordinary un-reenforced case. I also find this case'a great advantage in connection with damp oods such as soap, butter, oleomargarine an similar products. Soap shrinks and leaves a clearance in the inside of the package so that the package itself has to be able to support the stresses and strains brought upon it in stacking andv handling. Butter and o1 margarine are shipped as I do, this makes v the case. 'This makes structed in this way,

ing flaps and the cover "end blanks and in refrigerator cars and stored in refrigerators. The board becomes damp and soft and great strength a't the corners is needed to keep it in good condition. In a container conit,is also practical to cross the grain of the board on the head of the fibre board approach the strength of the wood veneer contruction used in the Well known wire bound I preferably seal the box by stitching the cover wings together in the order that I have shown. A'llhis may be by means of a blade anvil and is described in my process Patent No. 1,452,588, dated will be apparent that the position of the sealwings could be transposed that is,-the cover wings placed on the the sealing flaps on the body blank. I therefore want it understood that the claims cover either position, although it has been found necessary in some of the claims to specify the location of the wings and iiaps in order to make the claim unambiguous. v In'agreat many cases, as already stated, it'will not be necessary to stitch both sets of securing flaps te the adjacent blank. The

' flaps on the inside can be left loose if desired. I want it therefore understood that the claims coverthe case with the two sets of securing flaps whether both sets are stitched to the ad]aeent blank or not unlessC the claims distinctly specify such double stitching.

What I claim is:

1. A shippin case, constructed of three fiat creased blan s, one a main blank and two end blanks provided with end panels, the former forming when folded up two side walls andl one bottom wall, and all said blanks having corner fiaps foldable against the ad- ]acent blank to form double reenforced corners in which the single corners fit together to bring the end panels ush with the ends ofthe main blank, some of the corner flaps being fastened to the adjacent blank, thereby aording reenforced column strength at the vertical corners, and some of the said three blanks being creased to provide cover wings April 24th, 1923. Itl

box.

Y flat creased and folded which can be connected together in relation destructible when the case is opened.

2,-A shipping` case, constructed of three flat creased yand folded main blank creased to form two sides, one bottom and a cover Wing and a plurality of foldable ,corner aps, and the other two blanks creased to forni end panels with 'a plurality of foldable corner aps, the end panels positioned vin the ends of the main blank When folded up and double-stitched thereto at the end by stitchingl folded corner flaps of the end panels'to the main blank near its ends and stitching the folded cornerflaps of the main blank to the two end panels, the corners formed by the fia-ps and the member to which they are attached fitting together and locatiug the end panels flush with the ends of the case, and the case arranged to be sealed by connecting the cover wing in destructible relation with the body of the case when folded down, whereby double column reenforcement is afforded at the vertical corners of the 3. A.' shipping case, constructed of three fibre blanks, one a main blank divided by creases into two cover wings, one at each end, and intervening bottom andside walls, each of the side and bottom walls have short extensions divided olf by creases to forni corner flaps, and two minor blanks divided by creases to an end panel and three corner flaps, the said rmain blank being arranged to fold up and the corner flaps fold in at right angles, While the end blanks can be set against the ends of the main blank, and the corner flaps folded and the corners thus produced by folding both sets of corner iiaps fitted together to bring the end panels flush with t-he'ends of the case, and means driven through the corner flaps of the end blank and the main blank and driven through the corner flaps and the end panels to form a double end frame reenforcement in the ends of the case, the said cover wings being arranged to be fastened together to seal the case.

In testimony whereof I affix my signature. 'HERBERT R. BLISS. v

fibre blanks, one av form each' 

